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An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar system and is unlike anything ever before seen in our cosmic backyard, ...

Observations suggest comet spent billions of years on ‘vast unimaginable trajectories’ around our galaxy An interstellar comet that blazed past the sun last year could be nearly three times older than ...

Comet C/2025 R3 is already drawing attention—and offers a rare chance to understand what separates an ordinary comet from a truly “great” one. Comet C/2025 R3 (PanSTARRS) hangs above Bietschhorn in ...

A newly discovered comet, C/2025 R3 (PanSTARRS), could be the brightest of its kind visible from Earth in 2026. The comet will make its closest approach to the sun on April 19 and its closest approach ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Comet Pan-STARRS, also known as comet C/2025 R3 (Pan-STARRS) ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A large comet has exploded as a result of thermal pressure while ...

Astronomers caught a comet in the act of reversing its spin. Using NASA’s Hubble Space Telescope, scientists noticed the never-before-seen behavior of Comet 41P/Tuttle-Giacobini-Kresák (41P to its ...

In a stroke of luck, astronomers saw the comet C/2025 K1 (ATLAS) break into four or five fragments in November after it passed close to the sun. By Robin George Andrews Astronomers on Wednesday ...

Perplexity today expanded its Comet browser to iOS, making its AI Comet Assistant available to iPhone users. The Comet browser for iOS has many of the same features as the Comet browser for the ...

The interstellar comet 3I/ATLAS was the third object ever discovered in our solar system that originated from another star system. Despite a viral conspiracy theory, NASA officials have repeatedly ...

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